diff options
| -rw-r--r-- | include/hardware_legacy/AudioHardwareInterface.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/hardware_legacy/AudioHardwareInterface.h b/include/hardware_legacy/AudioHardwareInterface.h index bc9b4b2..ba65d9a 100644 --- a/include/hardware_legacy/AudioHardwareInterface.h +++ b/include/hardware_legacy/AudioHardwareInterface.h @@ -157,6 +157,14 @@ public: // The audio flinger will put the input in standby and then change the parameter value. virtual status_t setParameters(const String8& keyValuePairs) = 0; virtual String8 getParameters(const String8& keys) = 0; + + + // Return the amount of input frames lost in the audio driver since the last call of this function. + // Audio driver is expected to reset the value to 0 and restart counting upon returning the current value by this function call. + // Such loss typically occurs when the user space process is blocked longer than the capacity of audio driver buffers. + // Unit: the number of input audio frames + virtual unsigned int getInputFramesLost() const = 0; + }; /** |